allanster

VAMA Volume Adjusted Moving Average Function

This indicator is a live analysis adaptation of Richard Arms' Volume Adjusted Moving Average coded as a single function. VAMA utilizes a period length that is based on volume increments rather than time. Settings are provided for using as a pair of fast and slow moving averages.

SampleN - N volume bars used as sample to calculate average volume , 0 equals all bars.

VAMA Source - Price used for volume weighted calculations.

VAMA Length - Specified number of volume ratio buckets to be reached.

VAMA VI Fct - Size of volume ratio buckets.

VAMA Strict - Must meet desired volume requirements, even if number of bars has to exceed VAMA Length to do it.

Please see previous published example here for more details on VAMA's usage and inability to redraw the past on time based charts.

NOTICE: This is an example script and not meant to be used as an actual strategy. By using this script or any portion thereof, you acknowledge that you have read and understood that this is for research purposes only and I am not responsible for any financial losses you may incur by using this script!
Release Notes: Revision 1

Removed function's local ‎reliance on global input nvb by changing it to use local _nvb instead, added cosmetic space, revised comment, no calculations are affected from previous version.

Previous lines:
    tvb = 0, tvb := _nvb == 0 ? ‎nz(tvb[1]) + 1 : nvb                           // total ‎volume bars in sample            
    tvs = nvb == 0 ? cum(‎volume) : sum(‎volume,nvb)                             // total ‎volume in sample

Revised lines:
    tvb = 0, tvb := _nvb == 0 ? ‎nz(tvb[1]) + 1 : _nvb                          // total ‎volume bars used in sample            
    tvs = _nvb == 0 ? cum(‎volume) : sum(‎volume, _nvb)                          // total ‎volume in sample
Release Notes: Revision 2

Updated for Pine Script v5.

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Open-source script

In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.

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